SLVSE46A November 2017 – January 2018 TPS65680
The device enters PRESET state when the LS_CNTRL pin is high and VGH, VGL1 and VGL2 level shifter supplies are in a valid operating range. All outputs change are enabled in a sequence by changing from HiZ state to the preset output level as defined in and registers. In PRESET, the I2C interface is not responsive, i.e. the device does accept any data and does not acknowledge any I2C transaction even when address properly.